RE: Questions on a '75 Midget

<#3 Did you try removing all the vac lines from the carb and plugging 
them?? just to verify it is a vacuum issue.>

Once when having some troubles after swapping an engine in a Van of
mine, an old time mechanic friend of mine was trying to find a vacuum
leak, he sprayed something (silicone??) in the areas he suspected of the
problem, when the engine changed tone he knew he was onto something. 

List, would this be something reasonable to try to chase this down on a
Spridget?